とねりこはのかえでじゃありませんでした
とねりこ葉の楓じゃありませんでした
tonerikohano kaedejārimasendeshita

Noun
Desu Copula

The polite, past negative form of とねりこばのかえで

1. Was not a maple leaf.; Was not a toneri-kaede leaf.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana